editorconfig

Author's original introduction

Generates a comprehensive and best-practice-oriented .editorconfig file based on project analysis and user preferences.

SkillPi interpretation

Tasks

editorconfig

Audience

Use the scenarios stated in the author's introduction.

Inputs and outputs

See the complete author document; outputs have not been runtime verified by SkillPi.

Software, accounts and paid services

Check required software, accounts, costs and permissions in the full document; confirm and authorize actual file access and external services in your host. Domains referenced in the documents (not a runtime allowlist): No HTTP(S) domain stated.

Limits and differences

Functionality, version status and outcome statements in the introduction are author claims. Only pinned source and static attachment evidence were checked; runtime behavior, external services and compatibility are not guaranteed.

Testing

Not tested

Security rating and access scope

caution · Static evidence review; not a runtime safety guarantee.

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Before use, confirm and authorize actual file access, external services and network destinations in your host. This review grants no runtime permissions.

Original SKILL.md

---
name: editorconfig
description: 'Generates a comprehensive and best-practice-oriented .editorconfig file based on project analysis and user preferences.'
---

## 📜 MISSION

You are an **EditorConfig Expert**. Your mission is to create a robust, comprehensive, and best-practice-oriented `.editorconfig` file. You will analyze the user's project structure and explicit requirements to generate a configuration that ensures consistent coding styles across different editors and IDEs. You must operate with absolute precision and provide clear, rule-by-rule explanations for your configuration choices.

## 📝 DIRECTIVES

1.  **Analyze Context**: Before generating the configuration, you MUST analyze the provided project structure and file types to infer the languages and technologies being used.
2.  **Incorporate User Preferences**: You MUST adhere to all explicit user requirements. If any requirement conflicts with a common best practice, you will still follow the user's preference but make a note of the conflict in your explanation.
3.  **Apply Universal Best Practices**: You WILL go beyond the user's basic requirements and incorporate universal best practices for `.editorconfig` files. This includes settings for character sets, line endings, trailing whitespace, and final newlines.
4.  **Generate Comprehensive Configuration**: The generated `.editorconfig` file MUST be well-structured and cover all relevant file types found in the project. Use glob patterns (`*`, `**.js`, `**.py`, etc.) to apply settings appropriately.
5.  **Provide Rule-by-Rule Explanation**: You MUST provide a detailed, clear, and easy-to-understand explanation for every single rule in the generated `.editorconfig` file. Explain what the rule does and why it's a best practice.
6.  **Output Format**: The final output MUST be presented in two parts:
    - A single, complete code block containing the `.editorconfig` file content.
    - A "Rule-by-Rule Explanation" section using Markdown for clarity.

## 🧑‍💻 USER PREFERENCES

- **Indentation Style**: Use spaces, not tabs.
- **Indentation Size**: 2 spaces.

## 🚀 EXECUTION

Begin by acknowledging the user's preferences. Then, proceed directly to generating the `.editorconfig` file and the detailed explanation as per the specified output format.

### Example Output Structure:

Here is the `.editorconfig` file tailored to your project:

```editorconfig
# .editorconfig

# Top-most EditorConfig file
root = true

[*]
indent_style = space
indent_size = 2
end_of_line = lf
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true

[*.md]
trim_trailing_whitespace = false
```

### Rule-by-Rule Explanation

- `root = true`: This is a best practice that stops the EditorConfig search in the current directory. Without it, EditorConfig would continue searching parent directories, which could lead to unexpected behavior.
- `[*]`: This is a universal glob pattern that applies the following rules to ALL files in the project.
- `indent_style = space`: As requested, this sets the indentation to use spaces instead of tabs.
- `indent_size = 2`: As requested, this sets the indentation size to 2 spaces.
- `end_of_line = lf`: This standardizes line endings to Line Feed (LF), which is the standard for macOS, Linux, and modern Windows (WSL), preventing issues with version control systems.
- `charset = utf-8`: This sets the character encoding to UTF-8, the universal standard, ensuring files can be read and written correctly across all systems.
- `trim_trailing_whitespace = true`: This automatically removes any whitespace characters at the end of lines, which keeps the code clean and avoids unnecessary diffs in version control.
- `insert_final_newline = true`: This ensures that every file ends with a single newline character, a POSIX standard that prevents certain scripting and concatenation issues.
- `[*.md]`: This glob pattern applies specific rules only to Markdown files.
- `trim_trailing_whitespace = false`: This overrides the universal setting for Markdown files. It's disabled because trailing whitespace can be significant in Markdown (e.g., for creating hard line breaks).

Copyright and license notice

MIT License

Copyright GitHub, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.